Far Cry 2. It has some shining qualities and I've been finding it very fun, despite the limitations.
The African landscape is fantastic, you are absorbed into it. Seeing a sunset on the river, or watching the wind blow a fire across the savannah is really impressive. These are not decorative elements; the style of gameplay ensures that you're always observing things. You're usually navigating some challenge, either looking at the map, scouting for enemies, making sense of your surroundings. Is this the immersion I keep hearing about? It really works here.
The Ubisoft open-world style of gameplay is not bad necessarily, it's just a limited version of what it could be. Here it works pretty well, for a while. It's fun to take out enemy camps using your own strategies, to infiltrate a nest of enemies in the slums during heavy rain to plant a bomb, or simply to slowly make your way from point A to point B across jungles, rivers and savannahs. There isn't a great variety of objectives, with missions belonging to 3-4 types, so it eventually it starts to feel samey.
Because I don't play a lot of FPS, I started on Moderate difficulty; quickly switched to Hardcore, which didn't live up to the name, after which I decided to restart on Infamous difficulty using a mod* that fixed some annoyances with the game. Infamous is the only way to play. This is a game where you should spend a lot of time planning to avoid mistakes, it has to punish you. I haven't got to the end yet, but so far I'd prefer it to be even a bit harder.
Many have complained about the respawning enemy outposts--as soon as you leave a map cell the enemies are reset, leading to a lot of frustation, as you do a lot of travelling back and forth. Now, with the mod, they'll stay clear for at least 45 real minutes. It fixes bullet sponge enemies, makes the machete silent and restores some of the color to the beautiful African landscape; itt also features limited saving(like the consoles) and the option to remove the player marker from the map to make navigation truly a challenge, although this can make some of the delicate infiltration missions(i.e. blowing up enemy supplies in the middle of the slums) a bit frustrating, if you're playing them for the first time--still very worth it, imo.
The easiest strat is to use the Sniper Rifle to pick enemies far away, because enemies aren't very smart and don't communicate effectively. I find this kind of boring and prefer to get inside their range, using cover. This feels like a game made for stealth(some similarities with MGSV), and it still works, despite not being fully fleshed out. You don't get a lot of feedback on your visibility, you can't hide bodies, sound isn't very informative. It's still my favorite way to play: going out at night with a silent Makarov and clearing an entire outpost that way is a pretty good feeling, although more often than not something goes wrong and I have to pull my G3.
* I was confused by the number of overhaul mods that seem to do more or less the same thing. I ended up installing
Tom's Realism Plus through the installer, which let me customize some stuff, like the saturation level(60% feels good to me; most modded games you see on Youtube go all the other way from the original and have very bright colors).